Easy Chewy Peanut Butter Cookies with Oats

Ingredients

• 1 cup creamy peanut butter (preferably unsweetened)
• 1/2 cup granulated sugar
• 1/2 cup brown sugar, packed
• 1 large egg
• 1 tsp vanilla extract
• 1 cup rolled oats
• 1 cup all-purpose flour
• 1/2 tsp baking soda
• 1/4 tsp salt
• 1/2 cup chocolate chips or chopped nuts (optional)